PBS
Pbs Learning Media: Classifying Polygons
This interactive diagram focuses on sorting polygons by common properties and then you select the correct label for each section of the Venn Diagram.
Quia
Ixl Learning: Rectangles
Brush up on your math skills relating to rectangles then try some practice problems to test your understanding.
Quia
Ixl Learning: Squares
Brush up on your math skills relating to squares then try some practice problems to test your understanding.
Louisiana Department of Education
Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide: Angle Measure and Plane Figures
A guide to support parents as they work with their students in angle measure and plane figures.
K-5 Math Teaching Resources
K 5 Math Teaching Resources: Build a Hexagon [Pdf]
Play a game to build a hexagon.
University of Cambridge
University of Cambridge: Maths and Sports: Sports Equipment
Sports such as hockey, football, basketball and tennis use balls of different sizes. Can you arrange a selection of different balls in a line each touching the next to make the shortest line? This activity offers opportunities for...
CK-12 Foundation
Ck 12: Interactive Geometry: 9.5 Modeling in Three Dimensions
Explore connections between a 2-dimensional net and a 3-dimensional box. Later in this section, use equations with variables to solve real world problems that use 2 and 3-dimensional objects.
The Math League
The Math League: Figures and Polygons
This website has basic definitions for most polygons, regular and irregular.
Science Museum of Minnesota
Science Museum of Minnesota: Tans
In this lesson make a tangram and experiment with it to make new designs and pictures.
Mocomi & Anibrain Digital Technologies
Mocomi: What Is a Polygon?
Defines polygons and explores characteristics, types of polygons, and how to calculate the area of a polygon.
Instituto Latinoamericano de la Comunicacion Educativa
Red Escolar: Recortando Geometria
In Spanish. In this site you will find different activities involving geometric plane figures.
Instituto Latinoamericano de la Comunicacion Educativa
Red Escolar: Despega Sin Despegar
In Spanish. In these activities you can develop the concept of trajectory. Try to trace the figures without lifting your pencil.
Sophia Learning
Sophia: Two Lines Tangent to a Circle: Lesson 3
This lesson will present how if two segments from the same point outside a circle are tangent to a circle, then they are congruent. It is 3 of 5 in the series titled "Two Lines Tangent to a Circle."
Sophia Learning
Sophia: Using Triangles to Examine Quadrilaterals: Lesson 5
This lesson demonstrates how to determine properties of quadrilaterals by using triangles. It is 5 of 5 in the series titled "Using Triangles to Examine Quadrilaterals."
Sophia Learning
Sophia: Using Triangles to Find the Sum of Interior Angles: Lesson 1
This lesson demonstrates how to use triangles to determine the sum of the interior angles of a polygon. It is 1 of 5 in the series titled "Using Triangles to Find the Sum of Interior Angles."
That Quiz
That Quiz: Figuras
This interactive activity is designed for the student to review different geometric planes figures.
Mocomi & Anibrain Digital Technologies
Mocomi: What Is Circle?
Discusses the radius, diameter, circumference, and area of a circle.
Khan Academy
Khan Academy: Cross Sections of 3 D Objects
Practice your knowledge of all possible cross-sections of common 3D objects. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
That Quiz
That Quiz: Practice Test: Geometry
This resource allows users to test their geometry knowledge.
PBS
Pbs Learning Media: Patterns in Nature
In this video segment [3:25] from Cyberchase, a plant expert shows Bianca the patterns and symmetry found in nature.
Khan Academy
Khan Academy: Nets of Polyhedra
Practice matching 2D nets to the 3D shapes the fold up into. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Illustrative Mathematics
Illustrative Mathematics: G Gmd, G Mg Tennis Balls in a Can
In this task, students investigate the volume of tennis balls and their cylindrical container, the empty space around the balls, different ways of slicing them, and what their visualizations will look like. Aligns with G-GMD.B.4 and...
CK-12 Foundation
Ck 12: Interactive Geometry: 9.4 Connections Between Two and Three Dimensions
Cross-sections are one way that two-dimensional objects are connected to three-dimensional objects.
Purple Math
Purplemath: Geometry Word Problems: Introduction
Introduces how to set up and solve simple geometric-figure word problems. Includes advice regarding formulas to memorize.
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